Modern nature study : a first book for use in Canadian schools. Morang's modern nature study.Silcox, S.creatorStevenson, O. J.contributortextbookToronto :Morang & Co.,1902.1902
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EnglishHistorical textsNature studyQH541 .M67 1902Morang's twentieth century text-booksMorang's twentieth century text-books.http://www.biodiversitylibrary.org/bibliography/4545910.5962/bhl.title.45459